This cover is well made of heavy plastic material with a cotton like fiber lining. Buyers needing absolute durability and waterproof protection should look at this car cover. This is the optimum choice for storing cars outdoors where they are exposed to heavy rain and even heavy winter snow cover. This is my second purchase, the original car kept my car perfectly dry through two full years of Wisconsin weather which included torrential summer rains and brutal winter blizzards. My first cover was too large and is now protecting my boat, the new cover (small) fits my classic sports car perfectly. The lining material seems somewhat thinner than the original cover but the difference may be due to a different manufacturer of the fabric. I highly recommend this cover, it's heavy, waterproof, and at a great price.